import Vue from 'vue'
import Router from 'vue-router'
import Login from "./components/Login.vue"
import Home from "./components/Home.vue"
import Welcome from "./components/Welcome.vue"
import Users from "./components/user/Users.vue"
import Rights from "./components/power/Rights.vue"
import Roles from "./components/power/Roles.vue"
import Cate from "./components/goods/Cate.vue"

Vue.use(Router)

const router = new Router({
        routes: [
            { path: '/', redirect: '/login' },
            { path: '/login', component: Login },
            {
                path: '/home',
                component: Home,
                redirect: '/welcome',
                children: [
                    { path: '/welcome', component: Welcome },
                    { path: '/users', component: Users },
                    { path: '/rights', component: Rights },
                    { path: '/roles', component: Roles },
                    { path: '/categories', component: Cate }
                ]
            }
        ]
    })
    //挂载路由的导航守卫
router.beforeEach((to, from, next) => {
    // to 将要访问的路径
    // from 代表从哪个路径跳转而来
    // next 是一个函数，表示放行
    //     next()  放行    next('/login')  强制跳转

    if (to.path === '/login') return next()
        //获取token
    const tokenStr = window.sessionStorage.getItem('token')
    if (!tokenStr) return next('/login')
    next()
})

export default router